20960012

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{197}}^1\times {\mathrm{397}}^1$

素因数の和:665

約数の個数: 24

約数和(自身を含む): 37510704

約数和(自身を除く): 16550692

約数列:

[1, 2, 4, 67, 134, 197, 268, 394, 397, 788, 794, 1588, 13199, 26398, 26599, 52796, 53198, 78209, 106396, 156418, 312836, 5240003, 10480006, 20960012]

約数ペア:

[(1, 20960012), (2, 10480006), (4, 5240003), (67, 312836), (134, 156418), (197, 106396), (268, 78209), (394, 53198), (397, 52796), (788, 26599), (794, 26398), (1588, 13199)]